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#1 |
diyAudio Member
Join Date: Mar 2007
Location: Oakland, CA
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Hi,
I'm looking to prove an idea, but I'm not sure a typical PC running a head-less linux distro would suffice. I need to take multiple channels of input. For now, 8 discrete channels on AES/EBU, but that may change to HDMI later if possible without Dolby licensing rights. Output would be to AVB streams (possible 21 streams) using the services of OpenAVB along with a proper NIC such as an Intel I210. I need to process the eight discrete channels for a multi-way 7.1 theater system doing a relatively complex matrix. Off-board DSP engine?
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#2 |
diyAudio Member
Join Date: Mar 2007
Location: Oakland, CA
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Too bad the UAD-2 PCIe DSP Accelerator Cards are worthless under Linux
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#3 | |
diyAudio Member
Join Date: Nov 2012
Location: Melbourne
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Quote:
Hi Dave, I run 8in AES/EBU to 16Out AES/EBU DSP processor called Ultimate Equalizer. This is followed by miniDSP ICE-PWR AES/EBU amplifiers in various configurations, from 60W/8ohm to 250W/8ohm. If this is sufficient for you, then you can find more information on http://www.bodziosoftware.com.au/ Best Regards, Bohdan |
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#4 |
diyAudio Member
Join Date: Mar 2007
Location: Oakland, CA
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Interesting.. How do I build one myself with open source software to run on Linux and replace the direct output to AVB streams? 16 output isn't enough. I'll need at least 21
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#5 |
diyAudio Member
Join Date: Mar 2007
Location: Oakland, CA
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For software, maybe BruteFIR along with DRC (?). But at 21 streams of deep filtering at 24b/96k I don't think I'll have enough horsepower unless I off-load the work. I'll almost sure of it
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#7 | |
diyAudio Member
Join Date: Dec 2008
Location: Sunny San Diego, CA
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I think you'll still be good on a modern processor. He (Anders) quotes this in the brutefir description:
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#8 |
diyAudio Member
Join Date: Mar 2007
Location: Oakland, CA
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![]() CUFFT vs FFTW CUFFT spanks FFTW only when the work to do is significant. Makes sense just like with multi-threaded programming. When the work to do isn't significant, the inter-thread communication, syncing and other properties of worker management takes precedence rather than the job. One of these ought to do for taking the input. I think I'm good to go.
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